sysArchitect

sysArchitect

"The "Soul" of the new machine comes from the dedicated engineers who bring it to life with their endless hours of attention and toil. The soul is theirs, stored in silicon and microcode."
https://en.wikipedia.org/wiki/The_Soul_of_a_New_Machine

I once fixed a file system bug on an mp3 player SOC software dev kit then new songs appeared.
Real time debug instruments can copy data to a buffer for later inspection in the debugger or for later printing. A GPIO output pin on a scope or LED is another real time instrument but usually simpler instruments with check for suspected conditions can track down a problem. Error check all function calls and inputs for out of range values or at least document all valid input range in function headers.